Home / 82,455,302.80-123,682,954.20-77,353,469.20

Finding the Fourth Proportional to 82,455,302.80, 123,682,954.20 and 77,353,469.20

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Solution

The fourth proportional to 82,455,302.80, 123,682,954.20 and 77,353,469.20 is: 116,030,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,455,302.80 : 123,682,954.20 = 77,353,469.20 : x
  2. Step 2: Convert to fraction form
    82,455,302.80/123,682,954.20 = 77,353,469.20/x
  3. Step 3: Cross multiply
    82,455,302.80x = 123,682,954.20 × 77,353,469.20
  4. Step 4: Simplify right side
    82,455,302.80x = 9,567,305,588,274,712
  5. Step 5: Solve for x
    x = 9,567,305,588,274,712/82,455,302.80
  6. Step 6: Final answer
    x = 116,030,203.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.